抄録
The operating range of a centrifugal compressor is usually limited by the choke and the surge. The surge is related to the compressor system but it deeply relates to the inlet stall of impeller and/or the diffuser stall. Therefore, three flow rates of the velocity distributions were measured using a PIV in the impeller inlet. The correlations between the swirl flow and the reverse flow in the impeller inlet were discussed using velocity distributions of dynamic PIV system.
